Determination of the Redfield Remineralization Ratios Based on Neutral Surface Analysis of the New Global Data Set

基于新全球数据集的中性面分析确定红场再矿化率

• 批准号: 9819144
• 负责人: Robert Key
• 金额: $ 31万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819144&HistoricalAwards=false
• 关键词: Determination; Redfield; Remineralization; Ratios; Based

ABSTRACTOCE-9819144 / OCE-9903391In this study, investigators from Princeton University and Oregon State University will use the new, high-quality nutrient data set obtained during NOAA-OACES and WOCE field studies to refine estimates of the relative amounts of phosphorous, nitrogen, and carbon generated during the decomposition, or remineralization, of marine organic matter - the so-called Redfield Ratio (P:N:C). The Redfield Ratio is not a new concept; in fact, it has been used, and its approximate value has been known, for decades. Ocean scientists have relied on estimates of the Ratio to calculate a values of a variety of unmeasured biogeochemical values from the values of ones that have been measured. Analysis of the high-quality nutrient data sets generated in recent years demands that the Redfield estimate be improved, and this is what this team of investigators intends to do. An optimal multi-parameter technique will also be developed to determine ratio endpoints for application to modeling of biogeochemical data collected during the Joint Global Ocean Flux Study (JGOFS) as well as from OACES and WOCE. The technique will be applied to twenty neutral-density layers in each ocean basin to achieve some idea of the global variability as well as a global averaged Redfield value.

摘要OCE-9819144 / OCE-9903391在这项研究中，来自普林斯顿大学和俄勒冈州州立大学的研究人员将使用NOAA-OACES和WOCE实地研究期间获得的新的高质量营养数据集，来精确估计海洋有机物分解或再矿化过程中产生的磷、氮和碳的相对量--所谓的雷德菲尔德比率（P：N：C）。 雷德菲尔德比率并不是一个新概念;事实上，它已经被使用了几十年，其近似值也已经知道了。 海洋科学家依靠对比值的估计，从已测量的值中计算出各种未测量的地球化学值。 对近年来生成的高质量营养数据集的分析要求Redfield估计得到改进，这就是这个研究小组打算做的事情。 还将开发一种最佳多参数技术，以确定比率端点，用于全球海洋通量联合研究期间以及从OACES和WOCE收集的海洋地球化学数据的建模。 该技术将被应用到每个海洋盆地的20个中性密度层，以获得全球变化的一些想法，以及全球平均Redfield值。